Ball Mill + Air Classifier Production Process

Advanced integrated crushing and classification equipment dedicated to calcium carbonate
专用于碳酸钙的自动化球磨分级生产线,是针对碳酸钙矿粉特性研发的先进一体化粉碎分级设备。该生产线采用闭路循环系统设计,具备能耗低、产量高、运行稳定高效、技术成熟可靠、成品粒度精准可控等核心优势。其完整工艺流程涵盖二段破碎、精细研磨、精准分级、成品包装、料仓储存、物料输送及垂直提升等关键环节。在球磨机后端可并联或串联多台分级机,实现多种粒度规格碳酸钙产品的同步生产。

How it works

After undergoing coarse crushing, the calcium carbonate material is fed into the ball mill via a quantitative feeding device. During the operation of the ball mill, the internal grinding media gain kinetic energy accordingly and carry out repeated impact and grinding on the material. The crushed material enters the suction tank from the tail of the ball mill and is conveyed to the classifier for particle size classification under the action of negative pressure adsorption. The calcium carbonate fine powder that meets the particle size requirements is collected and packaged by a cyclone collector or dust collector; the unqualified coarse particles are discharged from the lower end of the classifier and returned to the ball mill through the feeding device for secondary crushing and processing.

Performance and features

A more scientific length-diameter ratio

Scientifically optimize the aspect ratio parameters of the equipment, effectively inhibit the occurrence of material over-grinding, ensure the grinding process is accurate and controllable, and at the same time improve the uniformity of material grinding and the quality of finished products, so as to achieve a more ideal grinding effect.

Upgraded jaw plates and media

Optimize the opening rate and opening structure design of the jaw plates, match them with smaller-specification grinding media, increase the contact area between materials and grinding media, strengthen the grinding force, significantly improve the grinding fineness of finished products, and meet the requirements of ultra-fine processing.

Reduce Retention, No Cooling Required
Adopting the plate-type mill tail discharge method, the material discharge path is smooth, completely eliminating the problem of material retention during the grinding process; at the same time, this design does not require additional cooling treatment for the cylinder, simplifying the equipment structure and operation process.
Precise Addition of Grinding Aids

For ultra-fine powder grinding scenarios, grinding aids are added precisely. By reducing material grinding resistance and decreasing particle agglomeration, grinding efficiency is effectively improved, the processing cycle of ultra-fine powder is shortened, and the unit energy consumption is reduced.

Precise Spraying of Grinding Aids

Equipped with high-precision metering pumps, grinding aids can be uniformly sprayed into the mill at precise time intervals and doses according to the preset product fineness standards, stably improving grinding efficiency and finished product fineness.

Closed-Loop Design, Dust-Free Operation

It forms a complete closed-loop system together with the classifier, adopting negative pressure conveying technology. Materials complete the entire process of grinding, classification and conveying in a sealed environment without dust leakage, achieving green and dust-free operation and meeting the environmental protection production standards.

Precise Quantitative Feeding

The ball mill is equipped with a precise quantitative feeding system. Through an intelligent control mechanism, it can maintain a stable feeding rate even when the material density fluctuates, avoiding the impact of uneven feeding on grinding efficiency and finished product quality.

Coordinated Matching of Classifiers

The classifier and the discharge section of the ball mill form an interlocking control logic, achieving coordinated matching of feeding, discharging and classification, which not only ensures the stable operation of the entire system but also enables precise control of product particle size.

Precise Regulation of Airflow Velocity

Equipped with a professional airflow measurement system, the damping valve can monitor and precisely regulate the airflow velocity in real time. By optimizing airflow parameters, it ensures the stability of the classification process, thereby improving classification efficiency and accuracy.

Technical Parameters

Ball Mill ModelJBM1830JBM2200JBM2400JBM2600JBM2800JBM3000
Ball Mill Power kW220320450630710800
Classifier Power kW192290384580670764
Coarse Crushing System Power kW3755659090110
Conveying and Packaging Power kW112222303737
Air Compressor Power kW18.53045557590
Capacity at D97:15μm t/h2.745.489.411
Capacity at D97:10μm t/h234678
Capacity at D97:5μm t/h0.91.31.82.733.6

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